Abstract: The adaptation of a heat pipe as a turbo-generator or other power output device for a reliable, quiet, light-weight high-endurance power source is shown. The device requires input thermal energy from a burner radioisotope (or solar heat) and also forced or natural heat rejection from condenser surfaces. Thermal energy conversion to a suitable power output is accomplished by encapsulating a turbine wheel within a heat pipe shell, located in an appropriately geometrical contoured section. Flow work extracted from the kinetic energy of the vapor flow provides rotary shaft power output. The shaft power can drive an electrical generator, pump, compressor, or similar device, also mounted within the heat pipe shell structure. A completely self-contained enclosed unit is provided which requires only external power connection at attachment terminals.

Abstract: A flueric initiator for a fuel-air explosive bomb possesses a sealed hous containing a pressurized gas, a plurality of igniter devices and a means for rupturing the housing and ejecting the igniter devices into the atmosphere. Each igniter device consists of a small gas container, a resonance tube, and explosive charge adjacent to the closed end of the resonance tube, and a nozzle connected to the gas container and communicating with the housing plenum through one or more vents. The housing is initially charged to a pressure considerably higher than the functioning pressure of the nozzle-resonance tube combination.

Abstract: An improved pneumatic match utilizes a vented conically shaped nozzle flare ositioned in a downstream region of a convergent nozzle to permit the match to be used in applications where fast functioning time is a necessity and where the fluid activating medium comprises a low helium pressure source or only high pressure air.

Abstract: A self-sealing fluidic explosive initiator utilizes a tapered sliding inner leeve, having a nozzle element, resonance tube and an explosive charge proximately disposed adjacent the resonance tube, to mate with a fitting sleeve for terminating a gas supply flow to the nozzle, and for containing the products of explosion of the initiator upon activation of the explosive charge. The initiation of the explosive charge is used to move a piston cutter valve.

Abstract: A flueric through bulkhead rocket motor ignitor in which a flueric thermal nergy generator is used to set off a pyrotechnic/explosive pickup charge that in turn sets off a donor pyrotechnic/explosive charge that transmits its energy through a thick metallic bulkhead that is utilized to maintain pressure integrity of a rocket motor, and the donor charge transmits its energy to a pyrotechnic/explosive pickup charge that in turn sets off a receptor charge that is utilized to ignite a solid propellant composition.